METHOD FOR GENERATING A PET OR SPECT IMAGE DATASET AND HYBRID IMAGING MODALITY FOR THIS PURPOSE

摘要

A method is disclosed for generating a PET or SPECT image dataset. In an embodiment, the method includes acquiring a plurality of PET or SPECT measurement signals from an examination region; acquiring a plurality of anatomy image datasets that show the examination region using a second imaging modality at the same time as acquiring the PET or SPECT measurement signals; determining the similarity of a reference anatomy image dataset acquired at a time point t′ using the second imaging modality to at least one anatomy image dataset acquired at a different time point and/or predetermining a temporal weighting function; and generating a PET or SPECT image dataset taking into account the similarity of the anatomy image datasets and/or weighting the PET measurement signals temporally. A hybrid imaging modality is also disclosed.

主权项

1. A method for generating a PET or SPECT image dataset for an at least partially moving examination object, the method comprising:
acquiring a plurality of PET or SPECT measurement signals from an examination region; acquiring a plurality of anatomy image datasets that show the examination region using a second imaging modality at the same time as acquiring the PET or SPECT measurement signals; at least one of
determining similarity between a reference anatomy image dataset acquired at a time point t′ using the second imaging modality and at least one anatomy image dataset acquired at a different time point, anddetermining a temporal weighting function; and generating the PET or SPECT image dataset taking into account at least one of the determined similarity of the anatomy image datasets and temporal weighting of the PET measurement signals using the determined temporal weighting function.